This article discusses sp_PerfSQ a diagnostic tool designed to quantify performance features of database queries with active requests. It includes a behavioural parser and can assist in troubleshooting complex performance issues.
2021-12-24 (first published: 2019-12-02)
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2020-03-03 (first published: 2019-11-25)
10,697 reads
A forum question came up a few days ago regarding an abnormally large procedural cache. In an attempt to help out, I threw together a few ideas (some wrong, some right) and started looking at the types of query that were in the cache. A lot of the queries were in the format select * […]
2019-11-11
4,800 reads
2019-10-28
7,217 reads
2019-06-10
1,101 reads
Batch Cussidy In the last post, we looked at how S...
2019-05-24
2019-05-24
2019-05-22
Watch this week’s episode on YouTube. SQL Server...
2019-05-22
Footnote I have two queries. They return the same number of rows. The only difference is one column in the…
2019-05-20
By Steve Jones
I had an idea for an animated view of a sales tool, and started...
Next Monday, February 9, 2026, my one-day live online training SQL Server Query Tuning...
By Steve Jones
One of the features we advocates have been advocating for is a better way...
Comments posted to this topic are about the item Delta Lake: The Definitive Guide:...
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Comments posted to this topic are about the item Storytelling with Data: Let's Practice!
In SQL Server 2025, what is returned from this code:
DECLARE @message VARCHAR(50) = 'Hello SQL Server 2025!'; DECLARE @encoded VARCHAR(MAX); SET @encoded = BASE64_ENCODE(CAST(@message AS VARBINARY(1000))); SELECT BASE64_DECODE(@encoded)See possible answers